public class Circular {
	Circle bottom;
	double height;
	void setBottom(Circle c) {	
		bottom=c;
	}
	void setHeight(double h) {						                height = h;
	}
	double getVolme() {							                if(bottom == null)
		    return -1;								        else				
                    return bottom.getArea()*height/3.0;
	}
	double getBottomRadius() {	
		return bottom.getRadius();		
	}
	public void setBottomRadius(double r) {	
		bottom.setRadius(r);	
	}
}

